During July 2025, Yiyang focused on enhancing the stability of the aws/amazon-vpc-cni-k8s repository, specifically improving the robustness of CNI plugin interactions with the Network Policy agent. By implementing conditional logging in Go, Yiyang ensured that logs are generated only when gRPC calls to the Network Policy agent fail, reducing unnecessary log noise and preventing potential NullPointerExceptions. This backend development work in Kubernetes networking improved operational reliability and observability for clusters using the AWS VPC CNI plugin. The targeted bug fix demonstrated a thoughtful approach to error handling, contributing depth and maintainability to the project’s core networking components.